🔒 Interlock Safety (Kirk Key Trapped Mechanical Interlocks, Zero-Break Solenoid Interlocks)

STS Maintenance Bypass Interlock Calculator

Size mechanical trapped key interlock sequences (Kirk Key / Castell) and solenoid-release interlocks for Static Transfer Switch wrap-around maintenance bypass systems: calculate safe human-error-proof make-before-break bypass transfers, isolate internal STS power electronics for servicing without dropping load, and electrical safety profits.

1. Project & Operating Inputs

Bypass Switch Configurations (Switch Count e.g. 8 3-Breaker Bypass Skids)

Switch Current Rating (Amps e.g. 600A Drawout Bypass Breakers)

Customer Bid Price for Supplied & Keyed Mechanical Interlock System ($)

Kirk Key Trapped Key Locksets, Solenoid Release Unit, Master Electrician ($)

2. Financial Breakdown & Yield

STS MAINTENANCE BYPASS

Turnkey Trapped Key Interlock System Profit

Electrical Safety Systems Contractor Margin

0.0%

Gross Revenue / Bill

Total Project CapEx

Operating / Direct Cost